myers



n UNITED STATES @f PATENT' OFFICE.

lDAVID MYERS, for NoRTII MANCHESTER, INDIANA, AssIeNoR CE CNE-HALE To lTHE MANCHESTER MANUFACTURING COMPANY, lor sAME PLACE.

FEED-WATER H EAT- ER AND STEAM-e EN ERATO R.

sPEoIEICATINfq'rming part o'f Letters raient Ne. 526,841, dated october e, 1894.

ff Application ined rebrumly lo, 1894. serial N9. 499,707. (No moan.)

To aZZwhomtJ/mty concern:

Be it knownthat I, DAVID MYERS, a citizen of the United States, residing at North Manchester, in the county of Wabash and Stateof 5. Indiana, have invented new and useful Improvements 'Y in Feed-Water 'Heaters and Steam-Generators, of which the following isa specification.y y f My invention relates to new and useful im-l provements in feed-water heaters and steam generators, particularly auxiliary steam-generators for steamboilers, and consists in a1 novel and peculiararrangement of .watercirculatlng andheatingjpipesf'and steam conveylng stan pipes hereinafter morefully set -The object ofQmy inventionv is, primarily,v to provide a series of watercirculating tubes transversely across thefurnace of the boiler collected in the return chambers of the dis tributing chamber will be conductedinto the. boiler at or below the waterrline of the boiler.' I attain these objects by means of.the,ar' rangement ofwater circulating and heating. tubesillustrated in the accompanying,draw-I ings in which similar numbers of reference designate like parts throughout the several vlews..

Figure 1. is a sidesectional elevation of a boiler and its setting taken through the line E. F, see Figs. 2. and 3. and showing my arrangement of feed water/heater and steam generator applied thereto. Fig. 2 is atransverse sectional elevation of Athe same 'taken through the line C. D. See Figs. 1. and 3. Fig.

3. is a sectional plan of the same taken through the line A-B- Figs. 1. and 2. Fig. 4. is a 5o perspective view of the feed Water heater and the steam generator. Fig. 5. is an enlarged debetween the boiler and thev said furnace to.

l tail broken view of a portion of the distributing chamber; and Fig. 6. is a detail view of the hand hole cover and the fastening for securing the same to the distributing chamber. In the drawings the ,steam generating boiler 1. isset or built in the setting 2. in the usual well known manner. The4 apparatus for heating the feed Water and generating the steam, to a great extent 6o therefrom, is composed of the-end distributing chambers-3 and 4 secured iush With the sides or sidewalls of the setting, and are each fsubdividedinto a series of kdistinct and separate compartments 5. 6. and 7. and 8. 9. and ,10. whichIdesignate return chambers-for reasons hereinafter shown. The opposite return chambers are connected directly by the feed water circulatingtubes or pipes which are arranged horizontally and transversely across 7o and over the furnace of the boiler 1. close to or, -almost in Contact with the furnace sheet or those lower sheets of the boiler subjected to the directheat from the flames ot' the furnace. The circulating tubes are arranged in pairs ofl upper andlower. rows 11. and 12. and

13 and 14. vEach of the pairs (as the pipes 11.and Il2.) has its iniiux. ends connected with the` return chambers 5. and its efflux ordischarge ends are connected with the re- 8o turn chambers 8, of the opposite distributing chamber'4.while the next pair of return pip'esl. andl 14. yhas its vinfiux ends connected with the returnl chamber 8. and its opposite Vdischarge ends or efflux ends connected with the return chamber 6. and so are the remaining ,circulating tubes arranged to alternately receive anddischarge the feed Water from their opposite return chambers 'tillthe heated water, or'the steam generated 9o therefrom, 'or both,; are discharged into the 4final chamber 7. which is connected to the `boiler below the water line thereof by the vertical or stand pipe 15. The feed water. is introduced first into the receiving chambery 5. by means of the feed pipe 16. connected to a suitable feeding device as a pump, injector, dac.

On the top of the distributing chamber 4. is arranged series of vertical or stand pipes Ioo 17, which are separately connected to the distributing or return chambers 8. 9. 9. and 10.

at their bottom ends and have their top ends connected by any suitable pipe connection, but preferably by the T-unions 1S. and the connecting nipples 19. to form a continuous top connection between each of the pipes which series of connections is connected to the boiler by the branch `pipe and iiange piece 20. The end T-union is plugged in the usual manner by the plug 2l.

In order that each of the return chambers of the distributing chambers 3. and 4. may be accessible I provide separate hand-holes in connection with each return. chamber each of which handhole is providedl With the removable cover 22, secured by the saddle 23. and its securing bolt 24.

From the forgoing description the operation of the apparatus Will be readily understood and the course of the circulation of the feed water readily seen and further description will be unnecessary.

I am aware that previous to this invention many different kinds of arrangements of feed-Water heaters having circulating tubes have been introduced into the main ues or passages through which the heated gases pass and escape to the stack With a view of economizing the fuel by causing the colder feed Water to circulate through said pipes to absorb heat from the gases that would otherwise `be Wasted. These appliances have been found in practice to become coated With soot 4 deposit and soon, either no heat units, or very few heat units, are absorbed by the Water from the escaping` gases.

It Will be observed that, in my arrangement of feed Water circulating tubes, the tubes Il. and 12. and 13. and 14 are placed in close proximity to the bottom sheets of the boiler which are the most exposed to thedirect and concentrated heat of the furnace. This I do for the purpose of protecting the said sheets from burning and reducing the violence ofl ebullition at this point of the boiler Which oftentimes is the direct cause of the priming of the boiler. l

Another feature of great importance resulting from this arrangement of feed Water heater and steam generator is that, bysuch a combination of distributer, a rapid circulation of the feed Water is produced in the circulating tubes of the heater and the Water and steam generated therefrom is heated to a degree of heat not less than that of the generating boiler thereby producing an equal expansion of the sheets throughout the entire surface of the boiler thereby reducing the tendency to overstraining to rupture of a minimum, and adding to the safety of the boiler.

Having thus fully described the construction and nature of my invention, what I claim as new and useful, and desire to cover by Letters Patent of the United States therefor,

1. In a feed Water heater and steam generator, the combination with the side distributing chambers thereof each of which isA di vided into a series of separate and disconnected compartments the whole formed in one integral piece, Water circulating tubes connecting each of the opposite compartments of said distributing chambers, said tubes so arranged that each successive tube circulates the fluid in opposite directions, means for supplying the feed Water to one of the end compartments of said distributing chamber, and for connecting the opposite endcompartment of said chamber to the boiler,`vertical `stand pipes connected at their bottom ends to the top sides ofthe compartments of one of the side chambers a series of pipes connecting the top ends of said stand pipes and a pipe connecting such pipes to the boiler, all substantially as and for the purpose set forth.

2. In a feed Waterheaterand steam generator for steam boilers, the combination with the distributing chambers thereof built longitudinally in and iiush With the exterior surface of the side Walls of the setting of the boiler, transverse Water circulating tubes extending between the boiler and the furnace horizontally, and connecting the opposite distributing chambers, a feed pipe connected to one of said distributing chambers and suitable pipe connections connecting the said distributing chamber With the boiler, substantially as `and for the purpose set forth.

3. In a feed water heater and steam generator, the combination with a steam boiler and its furnace setting, of side Water distributing chambers extending longitudinally in the side walls of the setting of said furnace and flush With the outer surface thereof, upper and lower circulating tubes connecting said distributing chambers, said tubes so arranged and connected that each successive pair of tubes circulates the fluid in opposite directions, a suitable supply pipe connecting to one end of one of said distributing chambers, a discharge pipe connecting the opposite end of said chamber to the boiler, and suitable steam receiving pipes connected at their bottom ends to said distributingchamber and having their opposite ends connected Withthe boiler substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

DAVID MYERS.

Witnesses:

J. S.- ANDREWS. O. T. Norme-ER.

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